Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics
(1) Background: The widespread use of nanoparticles (NPs) implies their inevitable contact with living organisms, including aquatic microorganisms, making it essential to understand the effects and consequences of this interaction. Understanding the adaptive responses and biochemical changes in micr...
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2024-12-01
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| author | Ludmila Rudi Liliana Cepoi Tatiana Chiriac Svetlana Djur |
| author_facet | Ludmila Rudi Liliana Cepoi Tatiana Chiriac Svetlana Djur |
| author_sort | Ludmila Rudi |
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| description | (1) Background: The widespread use of nanoparticles (NPs) implies their inevitable contact with living organisms, including aquatic microorganisms, making it essential to understand the effects and consequences of this interaction. Understanding the adaptive responses and biochemical changes in microalgae and cyanobacteria under NP-induced stress is essential for developing biotechnological strategies that optimize biomolecule production while minimizing potential toxicity. This study aimed to evaluate the interactions between various potentially toxic nanoparticles and the cyanobacterial strain <i>Arthrospira platensis</i>, focusing on the biological adaptations and biochemical mechanisms that enable the organism to withstand xenobiotic exposure. (2) Methods: The cyanobacterium <i>Arthrospira platensis</i> CNMN-CB-02 was cultivated under optimal laboratory conditions in the presence of CuNPs, CuONPs, ZnONPs, and TiO<sub>2</sub>NPs. Biochemical analyses were performed on the collected biomass. (3) Results: Various interactions between nanoparticles (NPs) and the cyanobacterial culture were identified, ranging from hormetic effects at low concentrations to evident toxic effects at high concentrations. NP toxicity was observed through the reduction in photosynthetic pigments and the disappearance of phycobiliproteins. Notably, NP toxicity was not always accompanied by increased malondialdehyde (MDA) levels. (4) Conclusions: <i>Arthrospira platensis</i> exhibits unique adaptive mechanisms under NP-induced stress, offering the potential for controlled NP applications in biotechnology. Future research should further explore the relationship between nanoparticle types and cyanobacterial responses to optimize biomolecule production. |
| format | Article |
| id | doaj-art-7ea871c2204942ec8579544f91c943b0 |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj-art-7ea871c2204942ec8579544f91c943b02025-01-10T13:19:21ZengMDPI AGNanomaterials2079-49912024-12-011514610.3390/nano15010046Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to XenobioticsLudmila Rudi0Liliana Cepoi1Tatiana Chiriac2Svetlana Djur3Institute of Microbiology and Biotechnology, Technical University of Moldova, MD 2028 Chisinau, MoldovaInstitute of Microbiology and Biotechnology, Technical University of Moldova, MD 2028 Chisinau, MoldovaInstitute of Microbiology and Biotechnology, Technical University of Moldova, MD 2028 Chisinau, MoldovaInstitute of Microbiology and Biotechnology, Technical University of Moldova, MD 2028 Chisinau, Moldova(1) Background: The widespread use of nanoparticles (NPs) implies their inevitable contact with living organisms, including aquatic microorganisms, making it essential to understand the effects and consequences of this interaction. Understanding the adaptive responses and biochemical changes in microalgae and cyanobacteria under NP-induced stress is essential for developing biotechnological strategies that optimize biomolecule production while minimizing potential toxicity. This study aimed to evaluate the interactions between various potentially toxic nanoparticles and the cyanobacterial strain <i>Arthrospira platensis</i>, focusing on the biological adaptations and biochemical mechanisms that enable the organism to withstand xenobiotic exposure. (2) Methods: The cyanobacterium <i>Arthrospira platensis</i> CNMN-CB-02 was cultivated under optimal laboratory conditions in the presence of CuNPs, CuONPs, ZnONPs, and TiO<sub>2</sub>NPs. Biochemical analyses were performed on the collected biomass. (3) Results: Various interactions between nanoparticles (NPs) and the cyanobacterial culture were identified, ranging from hormetic effects at low concentrations to evident toxic effects at high concentrations. NP toxicity was observed through the reduction in photosynthetic pigments and the disappearance of phycobiliproteins. Notably, NP toxicity was not always accompanied by increased malondialdehyde (MDA) levels. (4) Conclusions: <i>Arthrospira platensis</i> exhibits unique adaptive mechanisms under NP-induced stress, offering the potential for controlled NP applications in biotechnology. Future research should further explore the relationship between nanoparticle types and cyanobacterial responses to optimize biomolecule production.https://www.mdpi.com/2079-4991/15/1/46cyanobacterium <i>Arthrospira platensis</i>nanoparticlesrelationadaptive mechanismoxidative stresspotential toxicity |
| spellingShingle | Ludmila Rudi Liliana Cepoi Tatiana Chiriac Svetlana Djur Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics Nanomaterials cyanobacterium <i>Arthrospira platensis</i> nanoparticles relation adaptive mechanism oxidative stress potential toxicity |
| title | Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics |
| title_full | Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics |
| title_fullStr | Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics |
| title_full_unstemmed | Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics |
| title_short | Interactions Between Potentially Toxic Nanoparticles (Cu, CuO, ZnO, and TiO<sub>2</sub>) and the Cyanobacterium <i>Arthrospira platensis</i>: Biological Adaptations to Xenobiotics |
| title_sort | interactions between potentially toxic nanoparticles cu cuo zno and tio sub 2 sub and the cyanobacterium i arthrospira platensis i biological adaptations to xenobiotics |
| topic | cyanobacterium <i>Arthrospira platensis</i> nanoparticles relation adaptive mechanism oxidative stress potential toxicity |
| url | https://www.mdpi.com/2079-4991/15/1/46 |
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